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Wayne Howatt

Wayne Howatt. Director, Dearle & Henderson. The Climate Challenge. 01. Welcome. for Scottish FHE Institutions. Nature of Business Established Size Coverage Major Disciplines. Property & Construction Consultants 1908 300+ Staff UK Wide and Oversees Design Building Surveying

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Wayne Howatt

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  1. Wayne Howatt Director, Dearle & Henderson The Climate Challenge 01. Welcome for Scottish FHE Institutions

  2. Nature of Business Established Size Coverage Major Disciplines Property & Construction Consultants 1908 300+ Staff UK Wide and Oversees Design Building Surveying Compliance Quantity Surveying Project Management Energy & Sustainability 02. Introduction Our Company

  3. Our Commission, • Estate Condition and Compliance Survey • Condition of Fabric & Infrastructure • DDA Audit • Asbestos Data • Fire Data • Energy Performance of Buildings in Relation to EU EPBD 03. Heriot Watt University Survey The Project Background

  4. Riccarton Campus Statistics • Approximately 100 Hectare Site • 100 Buildings • 170,000 Sq.M. of Floor Area • 9000 Individual Room Spaces • Property Age Range in Excess of 200 Years • Very Wide Range of Building Use 03. Heriot Watt University Survey The Project Background

  5. Stage 1 Construction Data Site Survey Data Data Capture From Drawings And Specification Built Form Use Plant And Equipment Real World Information – Up To Date Fabric, Condition And Use 03. Heriot Watt University Survey The Carbon Emission Rating Process

  6. Stage 2 Build 3d Geometry Start Computer Model From Acquired Data Floors Walls Openings Roofs Stairs & Lifts 03. Heriot Watt University Survey The Carbon Emission Rating Process

  7. Stage 3 Maintenance Attach To All Individual Spaces & Components Environmental Data Attach Attributes To Geometry Update And Check System Static Data Set Appropriate Settings, Conditions, Values And Rules Building Data Activity Data Lighting Data Heating Data Location And Weather Model 03. Heriot Watt University Survey The Carbon Emission Rating Process

  8. Stage 4 Run Actual Run Notional Results Simulations On Building As Built With Actual ‘U’ Values Based On Building As If Compliant With Current Regs. (Part L 2006) Kg Carbon Dioxide per Sq.M. 03. Heriot Watt University Survey The Carbon Emission Rating Process

  9. Stage 5 Compare Outputs Produce Certification Log Book Outputs Determine Relative Emissions Actual Carbon Emission Notional Carbon Emission Relative Emission Performance (%) Index Rating Against Scale (EPBD/Relative) All Background Material And Ancillary Data Actual Notional X 100 (%) 03. Heriot Watt University Survey The Carbon Emission Rating Process

  10. Stage 6 Changes To Properties Future Proposals Maintain Model Update To Reflect Any Changes To Relevant Features Or Attributes Future Compliance Issue Develop Use Of Model As A Tool Assess Value/Benefit Of Proposals A Basis For ROI Calculations 03. Heriot Watt University Survey The Carbon Emission Rating Process

  11. 04. Design Solutions Using The Model As A Design Tool

  12. Functional Value Sustainable 3 Possible Routes • Cost • Sustainability • Flexibility • Future proof • Maintenance • Running Costs • Security 04. Design Solutions Environmental Engineering Requirements

  13. Natural / Passive Openable Windows Natural Ventilation Stack Driven Ventilation Solar Shading Ultra Low U Values Renewable Energy Sources Low Energy Engineered Choice of Open/Non-Openable Windows Mechanical Ventilation Renewable Energy Techniques Peak Summer Temp. Control Innovative Cooling Techniques Commercial Standard Non-Openable Windows Mechanical Ventilation Refrigerant Cooling Lightweight Building Standard U Values Fan Coils VRV etc. 04. Design Solutions Environmental Engineering Requirements

  14. Consider parkland / urban visibility - views general arrangement Public / private – security sustainability future flexibility internal movement natural daylight materials custody suite organisation operations / fsu relationships 04. Design Solutions Conceptual Development

  15. 04. Design Solutions Modelling Techniques

  16. 04. Design Solutions Fundamental Systems Integration

  17. Main office accommodation on north face, which is shaded and cool Sealed façade to reduce noise from adjacent highway Potential for green roof to reduce heat gains and improve thermal insulation NOISE Solar panels following the sun path could provide a percentage of renewable energy Ground source heat pump could provide a considerable percentage of free energy 04. Design Solutions Fundamental Systems Integration

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